19393+3152 BKO  75AD

Coord 2000	19393+3152		Discov num	BKO  75		Comp	AD		Coord arcsec 2000	19 39 20.06 +31 52 19.5
Date first	1998		Date last	2015		Obs	4
Pa first	73		Pa last	72		P.A. Now (θ)	72°
Sep first	86.1		Sep last	85.8		Sep. Now (ρ)	85.8"
Mag pri	9.30		Mag sec	11.20		delta mag (ΔM)	1.9		Spectral class	G8III (yellow)
Pri motion ra	+013		Sec motion ra	-003
Pri motion dec	-004		Sec motion dec	-004
Notes

rPM=1.176 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19393+3152	SEI 654	AB	1893	2015	9	115	14.8	9.30	10.68	1.38
Show			19393+3152	BKO 75	AC	1998	2015	4	15	13.2	9.30	12.50	3.20
Show			19393+3152	BKO 75	AD	1998	2015	4	72	85.8	9.30	11.20	1.90		<===
Show			19393+3152	BKO 75	DE	1998	2015	4	251	7.9	11.20	13.50	2.30

Quintuple system
5 visible stars in this system

Precise pa	72.4		Precise sep	85.833		Constellation	Cygnus		SAO	68636
Tycho2	2656-01315-1		Gaia DR2	08998845312

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19393+3152	BKO 75	AD	2002	2	72	85.8	9.30	11.20		D	193920.06+315219.5
19393+3152	BKO 75	AD	2015	4	72	85.8	9.30	11.20	G8III		193920.06+315219.5

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